/*
 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI 
 * for visualizing and manipulating spatial features with geometry and attributes.
 *
 * Copyright (C) 2003 Vivid Solutions
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * For more information, contact:
 *
 * Vivid Solutions
 * Suite #1A
 * 2328 Government Street
 * Victoria BC  V8T 5G5
 * Canada
 *
 * (250)385-6040
 * www.vividsolutions.com
 */

package com.vividsolutions.jump.workbench.ui;

import java.util.ArrayList;
import java.util.Iterator;

/**
 * Registry of inputChangedListeners; method to trigger them on demand.
 */

public class InputChangedFirer {
    private ArrayList inputChangedListeners = new ArrayList();

    //Common code shared by several classes. [Jon Aquino]
    public InputChangedFirer() {
    }

    public void add(InputChangedListener listener) {
        inputChangedListeners.add(listener);
    }

    public void remove(InputChangedListener listener) {
        inputChangedListeners.remove(listener);
    }

    public void fire() {
        for (Iterator i = inputChangedListeners.iterator(); i.hasNext();) {
            InputChangedListener listener = (InputChangedListener) i.next();
            listener.inputChanged();
        }
    }
}
